262 



A. W. Davison 



From which 



Fig. 15. Upper curve, Iron-Copper Junction. 



Lower curve, Copper-Lead. 



(d) = .000003133- 



Lead Manganin (fig. 14). S = 0. so 

 volts per mm. Jimctions (e) and (g) at 0. 



Current goes from lead to manganin in the hot junction. 



